1842545 has 16 divisors (see below), whose sum is σ = 2391120. Its totient is φ = 1357824.

The previous prime is 1842539. The next prime is 1842551. The reversal of 1842545 is 5452481.

It is an interprime number because it is at equal distance from previous prime (1842539) and next prime (1842551).

It can be written as a sum of positive squares in 8 ways, for example, as 327184 + 1515361 = 572^2 + 1231^2 .

It is not a de Polignac number, because 1842545 - 2⁶ = 1842481 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4301 + ... + 4709.

It is an arithmetic number, because the mean of its divisors is an integer number (149445).

2^1842545 is an apocalyptic number.

It is an amenable number.

1842545 is a deficient number, since it is larger than the sum of its proper divisors (548575).

1842545 is a wasteful number, since it uses less digits than its factorization.

1842545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484.

The product of its digits is 6400, while the sum is 29.

The square root of 1842545 is about 1357.4037719117. The cubic root of 1842545 is about 122.5949839473.

The spelling of 1842545 in words is "one million, eight hundred forty-two thousand, five hundred forty-five".